Table 5.
Concordance between different imaging modalities for in-stent minimal lumen area
| MLA (mm2) | VD | IVUS | OCT | ||
|---|---|---|---|---|---|
| Post-implant (n = 26) | ED | ICCa | 0.687 (0.411, 0.847) | 0.391 (−0.097, 0.748) | 0.310 (−0.064, 0.694) |
| ICCc | 0.679 (0.402, 0.842) | 0.731 (0.485, 0.870) | 0.765 (0.542, 0.887) | ||
| VD | ICCa | 0.343 (−0.097; 0.672) | 0.315 (−0.096, 0.681) | ||
| ICCc | 0.551 (0.215, 0.770) | 0.665 (0.380, 0.834) | |||
| IVUS | ICCa | 0.767 (0.184, 0.919) | |||
| ICCc | 0.864 (0.719, 0.936) | ||||
| 6 months (n = 27) | ED | ICCa | 0.568 (0.245, 0.777) | 0.300 (−0.095, 0.664) | 0.549 (−0.088, 0.850) |
| ICCc | 0.562 (0.238, 0.773) | 0.648 (0.361, 0.822) | 0.848 (0.694, 0.928) | ||
| VD | ICCa | 0.289 (−0.103, 0.623) | 0.329 (−0.050, 0.629) | ||
| ICCc | 0.512 (0.171, 0.744) | 0.450 (0.091, 0.705) | |||
| IVUS | ICCa | 0.684 (0.421, 0.842) | |||
| ICCc | 0.684 (0.417, 0.843) | ||||
All values are significant at a level of P < 0.01
CI confidence interval, ED edge detection, ICCa intraclass correlation coefficient for absolute agreement, ICCc intraclass correlation coefficient for consistency, IVUS intravascular ultrasound, MLA minimal lumen area, OCT optical coherence tomography, QCA quantitative coronary angiography, VD videodensitometry